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Natasha2012 [34]
3 years ago
13

Please help I kind of understand but not fully

Mathematics
1 answer:
Anit [1.1K]3 years ago
3 0

Answer:

Graph #1 - y=-20x+40

Graph #2 - y=5x+10

Step-by-step explanation: The first thing that you do is pull two points from each of the graphs and find the slope. To find the slope you use

<h2> M = y2-y1/x2-x1</h2>

<u>FROM GRAPH #1:</u>

<h3>(3,40) (2,80)</h3>

(x1,y1)    (x2,y2)

   80-40/2-3

      20/-1

    M = -20

<u>FROM GRAPH #2:</u>

<h3>(1,10) (3,20)</h3>

(x1,y1)  (x2,y2)

  20-10/3-1

     10/2

    M = 5

2. Now once you find the slope you will use the equation of a line formula to form an equation.

<h2>y=mx+b</h2>

The (mx) is your slope, the (b) is the y-intercept. (any value on the y-axis)

3. Since we now know the equation of a line and the slope we will substitute the variables.

<u>Graph #1:</u>

y=mx+b

y=-20x+40

<u>Graph #2:</u>

y=mx+b

y=5x+10

<h3>HOPE THIS HELPS :)</h3>
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